EP 0260088 A3 19881012 - LINE PRESSURE CONTROL SYSTEM FOR AN AUTOMATIC TRANSMISSION
Title (en)
LINE PRESSURE CONTROL SYSTEM FOR AN AUTOMATIC TRANSMISSION
Publication
Application
Priority
JP 21342286 A 19860910
Abstract (en)
[origin: EP0260088A2] A microcomputer (Figure 2) is provided for controlling an automatic transmission for a motor vehicle. The microcomputer operates to control line pressure in a hydraulic circuit for the automatic transmission. A control circuit (45) is provided to respond to an output signal (37) of the microcomputer (Figure 2) for energizing a solenoid (56) to control the line pressure. A driving circuit (46) is provided to respond to closing operation of a starter motor switch (48) of an engine to energize the solenoid (50) to reduce the line pressure.
IPC 1-7
IPC 8 full level
B60W 10/04 (2006.01); B60W 10/10 (2012.01); B60W 10/103 (2012.01); F16H 61/00 (2006.01); F16H 61/12 (2010.01); G05D 16/20 (2006.01)
CPC (source: EP US)
B60W 30/194 (2013.01 - EP US); F02N 19/00 (2013.01 - EP US); F16H 61/0021 (2013.01 - EP US)
Citation (search report)
- [X] US 3574288 A 19710413 - BARTH WALLACE E, et al
- [A] US 4534244 A 19850813 - HIRAMATSU TAKEO [JP]
- [A] DE 1917291 A1 19701015 - DAIMLER BENZ AG
Designated contracting state (EPC)
CH DE GB LI SE
DOCDB simple family (publication)
EP 0260088 A2 19880316; EP 0260088 A3 19881012; EP 0260088 B1 19901122; AU 584519 B2 19890525; AU 7797687 A 19880317; DE 3766328 D1 19910103; JP S6367448 A 19880326; US 4831896 A 19890523
DOCDB simple family (application)
EP 87307877 A 19870907; AU 7797687 A 19870904; DE 3766328 T 19870907; JP 21342286 A 19860910; US 9061487 A 19870828